Frost Dates for 72443 — Marmaduke, Arkansas

Half of springs at Paragould 1S, AR see their last 32°F night by March 26; only one in ten is past it by March 9, and one in ten still has one after April 10. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 5 20%, and after April 10 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 86% of the 105 Arkansas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 6 in half of years, as early as October 26 one year in ten, and holds off past November 23 one year in ten. A hard freeze of 28°F follows 11 days later, around November 17; in spring the one-in-ten date for 28°F is March 31, 10 days before the 32°F one. The freeze-free season lasts 227 days in a typical year, longer than at 58% of the 105 Arkansas stations; it reaches 249 days one year in ten and falls short of 205 one year in ten. On average 63 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 10 days longer, to about April 5, and return around October 27. Severe cold of 16°F or below comes in 94% of winters, usually between January 1 and February 6.

July is the warmest month at Paragould 1S, AR, averaging 90°F by day and 71°F at night; January is the coldest at 46°F and 28°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 35% of years.

Warmth for growing adds up to 4,879 growing degree days a year (base 50°F), fewer than at 61% of the 105 Arkansas stations. 39% of them (1,890) have built up by the end of June, and July adds the most, 942. Precipitation totals 51.6 inches a year, most in April (5.2") and least in September (3.3"); May to September bring 39% of it.

The nearest other station, Kennett Radio Kboa, MO, 18 miles east of Marmaduke, has a last frost 5 days later (March 31), a first frost 5 days earlier (November 1), a season 12 days shorter.

The first measurable snow (0.1 inch or more) in Marmaduke usually arrives around January 7, and the last of the season around February 9. Those are the middle dates across the winters of 1991–2020 at Corning, AR, 19.8 miles away: half of years saw snow earlier, half later. Snow fell in 96% of those winters. The last 32°F night of spring typically comes 45 days after the last snow.

ZIP 72443 is 12 miles from Paragould 1S, AR, which stands at 270 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 72450 (Paragould). The 2023 USDA Plant Hardiness Zone Map lists ZIP 72443 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.